Finding the Fourth Proportional to 7,831,287.74, 10,809,163.67 and 5,351,512.68
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Solution
The fourth proportional to 7,831,287.74, 10,809,163.67 and 5,351,512.68 is: 7,386,445.04
Step by Step Solution
- Step 1: Write the proportion equation
7,831,287.74 : 10,809,163.67 = 5,351,512.68 : x - Step 2: Convert to fraction form
7,831,287.74/10,809,163.67 = 5,351,512.68/x - Step 3: Cross multiply
7,831,287.74x = 10,809,163.67 × 5,351,512.68 - Step 4: Simplify right side
7,831,287.74x = 57,845,376,443,843.54 - Step 5: Solve for x
x = 57,845,376,443,843.54/7,831,287.74 - Step 6: Final answer
x = 7,386,445.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.